Double-seaming machine



H. HERMANI;

DOUBLE SEAMING MACHINE.

IAPPLICATION FILED DEC. 13. 1920.

21,43,241, Patented Dec.12,1922.

2 SHEETSSHEE] l. s 1 a $51 @129 alto M42135 HENRY HERMIANI, F BALTIIIIOB-E, MARYLAND, ASSIGNOB TO THE TIN DECORATING COMPANY OF BALTIMORE, 0F BALTIMORE,

JERSEY.

MARYLAND, A- COR]?OIEUEUIYIQON OF NEW noUBLn-sEeMINe MACHINE. I

Application filed December 13, 1920; Serial No. 430,302.

T 0 all whom it may concern:

Be it known that I HENRY Hnnaram, a

citizen of the United k tates, and resident of Baltimore, in the State of Maryland, have invented certain new and-useful Improve ments in Double-Seaming Machines, of which the following 15 a specification.

My invention relates to'mechanism espe cially well adapted for connecting, by

eaming, simultaneously, two separate members to a can body, to form a substantially complete or box.

In a particular embodiment ofthe invention, it has been devised especially for simultaneously applying to a ring-like body of variable contour, two originally-separate side plates of similar contour, the complete boxes or cans so formed being especially suitable for packaging toilet powders and similar commodities, for the reason that the shape of the boxes is readily varied to meet the requirements of the vendors for boxes of different and distinctive shapes. The ma chine, as explained hereafter, may be easily adapted for the seaming of such differentlyshaped containers, by changing or adjusting a very small number of parts, and these changes may be very quickly and simplymade.

A. principal object of the invention, there fore, is to provide simple, efficient and economical seaming mechanism for simultanecusly applying two side members to a can body.

A. more particular object is to especially adapt seaming mechanism for operating upon sheet metal parts of forms such as are hereafter described.

A. further object is to provide mechanism 40 which may be arranged for operation upon containers of different shapes and sizes, by

the exchange of very few and simple parts,

with simple or no adjustments.

While the particular embodiment of the invention here shown and described is especially adapted for the production of containers of the class described, the range of equivalent parts and combinations is notintended to be limited by reasonof such adaptation, beyond the limitations expressed in the cla1ms.

The characteristics andadvantages of the invention are further sufficiently explained in connection Withthe following detail de' I scription of an exemplifying. structure em; bodylng the invention; and after considering thls embod ment, it Wlll be understood "that many changes in structure and arrangement may be made within the spirit of the invention a s Figure 1 is a view, partly in elevation and partly in section of part of a can-seaming machine embodying the invention,

Figure 2' is a similar. view, with certain parts in another operative position, i I

Figure?) is an enlarged sectional detail of a pair of seaming rolls and their carrier,

Figure 4 is a side-elevation of a container of the'sort for the production of which the invention is, in this particular embodiment, adapted, b

Figure 5 is a face viewof a pattern cam corresponding to the container of Figure 4:, Figure 6 is a detail, similar to Figure 3., showing a different arrangement or adjustment of seaming rolls,

- Figure 7 is a front elevation, largely diashaft 4;, which may be the main drive shaft of the machine. Shaft 4 is connected by sprockets and chain am a shaft 6, and this carries a worm 7, driving worm-gear 8, on shaft 9, which also carries similarly-shaped.

cams 10, The principal parts'of the pe ripheries of these cams consist of spirals 11,

whose ends areconnected by short diagonal surfaces 12. Cam rollers 13 running on the cam peripheries are carried by levers 14:, fulcrumcd at 15, and having their ends 16 locatedin slots 17 in vertically-sliding plungers 18, mounted in suitable guides in the housing. 7

Plungers 18 have hea'ds19, the lower faces of which are engaged by rollers '20 carried by arms 21' of seaming-roll positioning bell cranks22, fulcrul led at23 in cam-actuated of one available slides 24, mounted in guides on the under side of housing 1, to move toward andtroin the axis of shaft 2.

Each of the slides 2-l has on its lower face, guides 30, in which is mounted a seamingroll carrier 31, so that these carriers may move toward and from the axis 0% shaft :12 to a certain extent, independently oi 'slides 24c. lflach roll-carrier has a central channel. 32, acconin'iodating a movable block provided with a socket 3 engaged by the rounded end 35 otarin 36 of one of bellcranks 22. Each carrier 31. also has a screw 38, provided with a long shank haying; r0 tatable bearings in the carrier near its inner and outer ends, and having an exposed head 39 by which it can be rotated. llhe threaded portion of the screw engages block 33. spring); 40, con'iprcssed between arm '36 of each bell-crank and a part of slide 2 nor-v mally holds the seaming-roll carrier in re tracted position in relation to its slide.

The carriers are ieriodu-allv advanced. in

a direction toward tne vertical-shalt axis, with relation to slides 24:, by cams 10, acting through levers l l, piungers 18, their heads 19, and bell-cranks this adyance being relatively slow feeding movernent effected by spiral earn ces 11; and then the carriers are quickly retracted by SPllllfIS a0 diagonal rain-surfaces 12 pass under rollers 13. The inward innit oi the "feeding movement vnia be regulated b rotatinn' screws 38 cordance with the contour of can bodies which are being seamed, by suitable means described below, and in this movement oi the slides, rollers 20 run back and forth on the under faces of heads 19.

Figures 1 to show containers or cans C of a kind for the seaming ct which the invention, in the present embodiment is especially d sirable. Such cans consist mainly of a strip 7) of sheet -inetal, which may be joined atone point by a suitable seam, constituting in effect a continuous body, form ing two sides, top, and bottom, of the COTIX- pleted can; and two separate plates 8, con stituting the remaining sices of the complete can, as shown in Figure &. r The central areas a of the side plates are depressed, or dished, producing a right-angled shoulder 7c, terminating in a peripheral flange f, the shoulders and flange edges usually having a more orless irregular, non-circular contour, which may be varied greatly, the contour of the body Z) being in agreement, to produce a great variety of artisticallyshaped containers, one of which, involving most of the seaming; problems which this invention. is intended to meet, is shown in Figure 4. Shoulders l: of the side plates lit closely within the margins oi? the body strip, with flanges projecting.

To hold and manipulate such a can-asseniibly for seaming, shaft 72 is provided with detachable fitting l comprising a can";

"bod L5 and a plate 46 the nerioherv oi": l 9 i l.

which fits closelyivithin the shoulder la of tee upper cairside plate. li oaxially arranged below shaft 2 is another shaft 458, mounted to rotate and reciprocate vertically in suitable bearings (not shownl and provided with suitable n'ial'iually acted means. such as a pedal (not shown) for eidecting' its vertical movement. This shaft is provided with a detachable fitting; G, which carries a plate 19, of a shape identical with plate 426, fitting within the shoulder ot lower can-side 8.

Cam body has a cam-groove 50, con toured to agree with. the contour of the fill-SlClQS, and in this groove are cam-rollers 51., carried by pins connected to extensions 53 of slides 24.

The inward ends of roll-carriers 31 are formed with jaws 55, and in each pair of jaws is a roll-shaft 56, se aired for easy detachment by set-s :rew 57. On each roll sha'it are two seainingr rolls 58, which have ijaces properly formed to engage the eda'zs oi? can-side flanges f, and by proper pressure and rotation of the can members and rolls to roll do vn the flanges upon the edges of the can body, produci i rolled seams 60, Fig ure 5, which unite the side members to the body. The pressure of the rolls is taken by the of plates it? and ll), which are in s set, (lie-plates, cooperating with the rotary seaming dies :38. The rolls are spaced apart so that they are properly ioc-atbd in relation. to the flanges, by suitable means, such as'slccves or washers 62, placed in the roll shafts between the rolls. The length of these sleeves is appropriate to the distance between the can-hanges determined by the width of the body with due regard to the positions of the rolling grooves in the bodies or rolls 58. To properly position the rolls for can bodies ct ditlerent widths. sleeves 62 may be replaced by longer or shorter ones, as for instance as shown in Figure 6, where sleeve or washer 63 is shorter, bringing the seeming rolls nearer together, for rolling flanges f which are correspondingly closer together, to lit a narrower body 7). Also, since the upper shaft-fitting ii is most conveniently fined against vertical movement,

positions; and other sleeves or washers 65 (Figure 6) are placed between the lower carrier jaws 55 and the lower rolls to properly position them. c

The roll positioning devices, such' as sleeves or washers 62, 63 or 65, may be conadjusted for cans of given width and con tour, and drive shaft 4 being in motion, shaft 48 and its fitting G are retracted by the operative, and a can assembly placed on the fitting, by locating the recess of one sideplate 8 on die-plate 49, with shoulder is litting the periphery of the die at a moment when carriers 31 are retracted by springs 40, The lower shaft and fitting G are moved up bringing the can-flanges opposite the seaming rolls, as shown in Figure 2; and when shaft 48,is an idler, that is, not positively driven in definite position in relation to shaft 2, a part-rotation of the latter shaft brings its die-plate 49 into reg istry-engagement with the upper can-sideplate. Shortly thereafter feed cams 10 advance the seaming rolls into engagement with the can-flange-edges. The cam-groove 50, which may be identified in some cases as a master cam, otherwise as-a contour-cam, meantime moves slides 24 and carriers 31 in and out in strict accordance with'the contour of the can. After a suitable number of rotations of the can carrying shafts, the amount of rotation depending on the ratio of gear-connections between shafts 2 and 9, the inward feed movement of carriers 31 in relation to slides 24 is completechcompleting the formation of the can-seams; the car- I riers are retracted, the seamed can removed and replaced by another assembly, and so on.

My invention therefore provides means for simultaneously seaming two sides on cans of irregular contour, in a rapid and economical manner.

\Vhen the can shape (contour) is changed, a master cam of corresponding contour is substituted for the one shown; also the die-- plates 46 and 49 are replaced by others of appropriate form.

Fitting F may comprise a sleeve 7 0, integral with or attached to cam body 45; and the sleeve may be secured to shaft 2 by a setscrew 71, or other suitable device for the ready detachment of the fitting.

Fitting G may be similarly detachably secured to shaft 48.

Desirably,-also, die-plates 46 and 49 are made separate from the bodies of the fit tings, and are detachably secured thereto, as, for example, byscrews 75. the'h'eads of which are accommodated by suitable countersinks in the plates.

Containers of the class described are often provided with dispensing tops such as 2?", Figure 4; and these maybe applied in cases after the cans are in other respects a completed; but otherwise forconvenience or economy in manufacture it maybe desirable to-secure the dispensing closure-in'the body'- strip 5 before the sides a are applied.

seaming operation when the dispensing tops are in place, in certain cases.- For instance,

in Figures 1 to 3, the seaming rolls provide suflicient clearance to avoid conflict with thescribed, it is evident that where the body dis,

My invention may be adapted to permit the sidemension is considerably longer, the members :9 would then appear to be ends, rather than sides. Such terms therefore have mainly a relative, and not a limiting sig-.

nificance. I

Evidently, from the foregoing description, many changes in structure and arrangement of parts may be made without departing from the principles of the invention; and I contemplate the employment of all structures which are properly within scope of the following claims.

hat I claim is: i i 1. In a machine of the class described, means for supporting a container assembly comprising a body and two side members having projecting flanges, a pair of seam-- ing rolls for simultaneously seam-forming the flanges by relative rotation of the assembly and the rolls, means for moving the rolls to and fro in conformity with the assembly contour, and means for advancing the rolls for progressive seam-formation.

2. In a machine of the class described, means for supporting a container assembly of non-circular outline comprising a body and two side members having projecting flanges, a pair of seaming rolls for simultaneously seam-forming the flanges by relative rotation of the assembly and the rolls,

' the j means for moving the rolls to and fro in conformity with the assembly contour, and means for progressively feeding the rolls in seam-forming contact with the flanges.

3. A machine for seaming a can assembly composed of a body and two recessed side plates of irregular contour and having projecting flanges, comprising die plates fitting said recesses, means for rotating the assembly held by the die plates, seaming rolls, one for each of said flanges, means for feeding Said rolls in engagement with the flanges to simultaneously seam-form them upon the edges of the body, and means for moving the rolls to and fro in conformity with the assembly-contour.

4-. A can seaming machine comprising a vertical spindle rotating in a fixed bearing, a contour cam and a can-face engaging member thereon, a co-axial spindle mounted for rotation and vertical movement, a can-face engaging member thereon, a slide mounted for horizontal reciprocating movement toward and from the spindle axis and hav ing a cam follower engaging the contour cam, a roll yoke mounted for horizontal reciprocating movement on the slide toward and from the spindle axis, a pair of spaced rolls in the yoke arranged to engage projecting edges of the can and seam-form them, a bell-crank pivoted in the slide and engaging the roll yoke, and a vertically moving plunger engaging the bell-crank to impart a feed movement to the yoke while the slide is moved by the contour cam in correspondence with the can contour.

5. A can seaming machine comprising a vertical spindle rotating in a fixed bearing, a contour cam and a can-face engaging member thereon, a co-axial spindle mounted for rotation and vertical movement, a can-face engaging member thereon, a slide mounted for horizontal reciprocating movement toward and from the spindle axis and having a cam follower engaging the contour cam, a roll yoke mounted for horizontal reciprocating movement on the slide toward and from the spindle axis, a pair of spaced rolls in the yoke arranged to engage projecting edges of the can and seam-form them, a bell-crank pivoted in the slide and engaging the roll yoke, a vertically moving plunger engaging the bell-crank to impart a feed movement to the yoke while the slide is moved by the contour cam in correspondence with the can contour, and means for adjusting the position of the roll yoke in relation to the bell-crank.

6. A can seaming machine comprising a vertical rotary spindle, a contour cam and a can-face engaging member on said. spindle, a co-axial spindle mounted for rotation and vertical movement, a can-face engaging member thereon, opposite slides mounted for horizontal reciprocating movement toward and fromthe spindle axis and having cam followers engaging the contour cam,

roll yokes mounted for horizontal reciproeating movement on the slides toward and from the spindle axis, a pair of spaced rolls in each yoke arranged to engage projecting edges of the can and seam-form them, a bellcrank pivoted in each side and engaging the corresponding roll yoke, and a vertically moving plunger engaging each bell-crank to impart a feed movement to the yoke while the slide is moved by the cam in correspondence with the can contour.

7 A can seaming machine comprising a vertical rotary spindle, a contour cam and a can-face engaging member on said spindle, a coaxial spindle mounted for rotation and vertical movement, a can-face engaging member thereon, opposite slides mounted for horizontal reciprocating movement toward and from the spindle axis and having cam followers engaging the contour cam, roll yokes mounted for horizontal reciprocating movement on the slides toward and from the spindle axis, a pair of spaced rolls in each yoke arranged to engage projecting edges of the can and seam-form them, a bell-crank pivoted in each slide and engaging the corresponding roll yoke, a vertically moving plunger engaging each bell-crank to impart a "feed movement to the yoke while the slide is moved by the cam in correspondence with the can contour, and means for adjusting the position of the roll yokes in relation to the.

bell-cranks.

Signed at city of Baltimore, State of Maryland, this 6 day of Dec, A. D. 1920.

HENRY HERMANI. 

